Nh175 over Pemigewasset River

Poor Condition87 years old674 vehicles/day

Location

StateNew Hampshire
CountyGrafton
Location0.05 Mi From Jct RTE 3
CarriesNh175
CrossesPemigewasset River
Coordinates44.02199, -71.68194

Condition Ratings

Overall ConditionPoor
Deck3 (Serious)
Superstructure4 (Poor)
Substructure5 (Fair)
Channel/Waterway6 (Satisfactory)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialSteel
DesignArch - Thru
Total Length183.1 ft (55.8 m)
Max Span171.9 ft (52.4 m)
Deck Width30.8 ft (9.4 m)
Deck Area524.5 sq m
Main Spans1
Year Built1939

Traffic

Avg Daily Traffic674 (2023)
Truck Traffic10%
Lanes On Bridge2

Inspection & Ownership

Last InspectionNovember 2024
Inspection FrequencyEvery 8 months
OwnerState Highway Agency
Historical SignificanceBridge is eligible for the National Register
Structure Number028401770014800

Nearby Bridges